I am working on a replacement for BIP39 and noticed that the passwordsection mandates a Unicode normalization pass but does not prohibitunassigned character points.

I believe that this is problematic as newer drafts of Unicode alter theoutput of normalization passes. So if a user assigned a password using awallet that linked to Unicode 9 but input a code point reserved in Unicode10, updating the wallet to Unicode 10 could incorrectly remap that codepoint [0].

Thank you,-Zach Lym

P.S. The relevant RFC on this subject specifies a different normalizationprocedure [1]